Answer
$76.3 \ cm, 265 \ cm^2 $
Work Step by Step
The perimeter of a triangle is the sum of its sides; that is,
$$Perimeter=22.2+29.8+24.3=76.3 \ cm. $$
The area of a triangle is half of the base times the corresponding height; that is,
$$Area=\frac{1}{2} \times 29.8 \times17.8\approx 265 \ cm^2. $$
